so I can simply label the whole surface, if I'm confident? I don't know
much about labels and how to make them (I use caret mainly, since I do
monkey). I presume it's what one would imagine, and there's a way to figure
it out.

On 20 July 2012 19:36, Bruce Fischl <fis...@nmr.mgh.harvard.edu> wrote:

> Hi Colin
>
> the hires label is meant to be the portion of the surface that is far
> enough into the FOV/coil that you are confident of the data there.
>
> cheers
> Bruce
>
>
> On Fri, 20 Jul 2012, Colin Reveley wrote:
>
>  Hi -
>> I'm using freesurfer with an ex-vivo MTR of a monkey, at 0.25mm.
>> unfortunately the data doesn't fit into 256^3, and anyway things are much
>> faster, and decent results are to be had by downsampling to 0.5mm.
>>
>> I did notice this mris_refine_surfaces. That looked great. I can fit
>> 0.32mm
>> into 256^3, so I did that, and called it 0.64mm, and treated it the same
>> way
>> I treated the 0.5mm (nu_correct etc etc) to get my "hires.mgz" for
>> mris_refine_surfaces
>>
>> then I noticed mris_refine_surfaces wants ?h_hires.label as well.
>>
>> a) how would I make ?h_hires.label
>> b) does my hires.mgz even have to be 256^3? If not, I could use the actual
>> 250um data to refine the surface, and that would be nice.
>> c) I don't suppose there would be any chance of not only using a hi res
>> volume to refine the surfaces, but also upsampling the surfaces too? There
>> is a reason I might want them upsampled. It would be nice for the ?h.white
>> mesh to sort of approximately have a node for each voxel face. It's to do
>> with more accurately mapping certain data in CARET later on.
>>
>> I'd settle for just how to make ?h_hires.label and use
>> mris_refine_surfaces
>> though :)
>>
>> cheers,
>>
>> Colin
>>
>>
>>
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